Tiempos revueltos, ¿tiempos de pactos?

Las últimas previsiones de crecimiento para el 2022 de la economía española se acaban de revisar a la baja. Es un dato preocupante, que se une al nuevo retraso de la posible fecha de recuperación del nivel de producción anterior a la crisis y a la alteración del escenario internacional por la invasión de Ucrania

Spanish shrimp (Pandalus borealis) fishery in Flemish cap in 1997

4 páginas, 4 tablas.-- Scientific Council MeetingIn 1997 one Spanish trawler have been involved in the shrimp fishery in Flemish Cap (NAFO Div. 3M) from March to May. A scientific observer remained on board this trawler during all the fishing period, providing information on the fishing activity and carrying out biological sampling. The gear used was a twin trawl, with a 19 mm bar spacing sorting grate. In this paper, the main results of this fishery are presented.Peer reviewe

Pigouvian Second Degree Price Discrimination and Taxes in a Monopoly: an Example of Unit Tax Superiority

We provide an example of a monopoly with Pigouvian second-degree price discrimination where unit taxes are Pareto superior to ad valorem taxes

Technology Choice and Third Degree Price Discrimination in a Monopoly

This paper studies technology choice as a relevant aspect to be considered when analyzing price discrimination and welfare. Our results reinforce the traditional wisdom that an increase in output is a necessary condition for price discrimination to improve social welfare. But we also find that the positive output effect does not need to be as large as previously supposed since, under some conditions, the monopoly will move to a socially preferred technology only if third-degree price discrimination is allowed

New states in 18Na and 19Mg observed in the two-proton decay of 19Mg

Previously unknown states in 18Na and 19Mg have been studied by measuring the trajectories of their decay products with microstrip detectors. Analyzing angular correlations of the fragments provided information on decay energies and widths of the parent states. The ground state of 18Na has been detected and its one-proton decay energy of 1.23(15) MeV determined. Four previously unknown states in 19Mg at 2.1, 2.9, 3.6, and 5.2 MeV have been observed. The competition between simultaneous and sequential two-proton emission of states in 19Mg is discussed, and the conclusion of a direct mechanism of 2p radioactivity of the 19Mg ground state is confirmed.MEC EC-I3 FPA2006-13807-C02-01Ministerio de Economía y Competitividad FPA2009-0884

Proton-proton correlations observed in two-proton decay of 19Mg and 16Ne

Proton-proton correlations were observed for the two-proton decays of the ground states of 19Mg and 16Ne. The trajectories of the respective decay products, 17Ne+p+p and 14O+p+p, were measured by using a tracking technique with microstrip detectors. These data were used to reconstruct the angular correlations of fragments projected on planes transverse to the precursor momenta. The measured three-particle correlations reflect a genuine three-body decay mechanism and allowed us to obtain spectroscopic information on the precursors with valence protons in the sd shell.EURONS EC-I3MEC FPA2003-05958 FPA2006-13807-C02-0

Interaction of 8 He with 208Pb at near-barrier energies: 4 He and 6 He production

Spanish Ministry of Economy and Competitiveness-FPA-2010-22131-CO2-01 (FINURA) y FPA2013-47327-C2-1-RMinistry of Science and Higher Education of Poland-N202 033637National Science Centre of Poland-2013/08/M/ST2/00257 (LEA-COPIGAL) y 2014/14/M/ST2/00738 (COPIN-INFN Collaboration)European Science Foundation-EUI2009-04163432 (EUROGENESIS

Double percolation effects and fractal behavior in magnetic/superconducting hybrids

Perpendicular magnetic anisotropy ferromagnetic/superconducting (FM/SC) bilayers with a labyrinth domain structure are used to study nucleation of superconductivity on a fractal network, tunable through magnetic history. As clusters of reversed domains appear in the FM layer, the SC film shows a percolative behavior that depends on two independent processes: the arrangement of initial reversed domains and the fractal geometry of expanding clusters. For a full labyrinth structure, the behavior of the upper critical field is typical of confined superconductivity on a fractal network

Latin America ClimateSmart Villages AR4D sites: 2016 Inventory

Inventory of CSA practices in Latin America’s ClimateSmart Villages