Identification of non-small cell lung cancer biomarkers using mass spectrometry

Comunicaciones a congreso

Recensiones [Revista de Historia Económica Año IX Primavera-Verano 1991 n. 2 pp. 409-418]

Richard Herr. Rural Change and Royal Finances in Spain at the end of the Oíd Regime (Por James Simpson).-- Montserrat Gárate Ojanguren. La Real Compañía Guipuzcoana de Caracas (Por Tomás Martínez Vara).-- Gary Wray Mcdonogh. Las buenas familias de Barcelona. Historia social de poder enla era industrial (Por Andrés Hoyo Aparicio).-- Julio Millot y Magdalena Bertino. Historia Económica del Uruguay (Por Omar Licandro).-- David Bernabé Gil. Hacienda y mercado urbano en la Orihuela foral moderna (Por José Antonio Miranda Encarnación).-- A.D.M. Philips. The underdraining of farmland in England during the nineteenth century (Por Salvador Calatayud Giner).-- Harvey J. Gravff. The Legacies of Literacy. Continuities and contradictions in Western Culture and Society (Por Carlos Newland).-- Enrique Fuentes Quintana. Las reformas tributarias en España. Teoría, historia y propuestas (Por Juan Velarde Fuentes).-- Pablo Bustelo. Economía política de los nuevos países industriales asiáticos (Por Alberto Alonso).-- Jim Tomlimson. Public Policy and the Economy since 1900 (Por Antonio F. Cubel Montesinos)Richard Herr. Rural Change and Royal Finances in Spain at the end of the Oíd Regime (Por James Simpson).-- Montserrat Gárate Ojanguren. La Real Compañía Guipuzcoana de Caracas (Por Tomás Martínez Vara).-- Gary Wray Mcdonogh. Las buenas familias de Barcelona. Historia social de poder enla era industrial (Por Andrés Hoyo Aparicio).-- Julio Millot y Magdalena Bertino. Historia Económica del Uruguay (Por Omar Licandro).-- David Bernabé Gil. Hacienda y mercado urbano en la Orihuela foral moderna (Por José Antonio Miranda Encarnación).-- A.D.M. Philips. The underdraining of farmland in England during the nineteenth century (Por Salvador Calatayud Giner).-- Harvey J. Gravff. The Legacies of Literacy. Continuities and contradictions in Western Culture and Society (Por Carlos Newland).-- Enrique Fuentes Quintana. Las reformas tributarias en España. Teoría, historia y propuestas (Por Juan Velarde Fuentes).-- Pablo Bustelo. Economía política de los nuevos países industriales asiáticos (Por Alberto Alonso).-- Jim Tomlimson. Public Policy and the Economy since 1900 (Por Antonio F. Cubel Montesinos)Publicad

Sensitivity of the NEXT experiment to Xe-124 double electron capture

Double electron capture by proton-rich nuclei is a second-order nuclear process analogous to double beta decay. Despite their similarities, the decay signature is quite different, potentially providing a new channel to measure the hypothesized neutrinoless mode of these decays. The Standard-Model-allowed two-neutrino double electron capture (2¿EC EC) has been predicted for a number of isotopes, but only observed in 78Kr, 130Ba and, recently, 124Xe. The sensitivity to this decay establishes a benchmark for the ultimate experimental goal, namely the potential to discover also the lepton-number-violating neutrinoless version of this process, 0¿EC EC. Here we report on the current sensitivity of the NEXT-White detector to 124Xe 2¿EC EC and on the extrapolation to NEXT-100. Using simulated data for the 2¿EC EC signal and real data from NEXT-White operated with 124Xe-depleted gas as background, we define an optimal event selection that maximizes the NEXT-White sensitivity. We estimate that, for NEXT-100 operated with xenon gas isotopically enriched with 1 kg of 124Xe and for a 5-year run, a sensitivity to the 2¿EC EC half-life of 6 × 1022 y (at 90% confidence level) or better can be reached. [Figure not available: see fulltext.

Dependence of polytetrafluoroethylene reflectance on thickness at visible and ultraviolet wavelengths in air

Polytetrafluoroethylene (PTFE) is an excellent diffuse reflector widely used in light collection systems for particle physics experiments. However, the reflectance of PTFE is a function of its thickness. In this work, we investigate this dependence in air for light of wavelengths 260 nm and 450 nm using two complementary methods. We find that PTFE reflectance for thicknesses from 5 mm to 10 mm ranges from 92.5% to 94.5% at 450 nm, and from 90.0% to 92.0% at 260 nm. We also see that the reflectance of PTFE of a given thickness can vary by as much as 2.7% within the same piece of material. Finally, we show that placing a specular reflector behind the PTFE can recover the loss of reflectance in the visible without introducing a specular component in the reflectance