Movimiento superficial del glaciar rocoso de las Argualas

At present the Argualas rock glacier is active and it flows to a surface axial mean velocity of 22,3 cm/year. The flow velocities have been determinated by surveying techniques made between 1991 and 1994. This technic complements the geomorphological observations and deepens in the knov\/ledge of the glacier surface dynamics.El glaciar rocoso de las Argualas es activo en la actualidad y fluye a una velocidad media axial en superficie de 22.3 cm/año. El flujo se ha determinado median te las técnicas de auscultación topográfica realizadas entre los años 1991 y 1994. Esta técnica ha permitido complementar el análisis geomorfológico, profundizado en el estudio de la dinámica superficial del glaciar

Implications for the Consideration of References Instead of Citations for the Bibliometric Laws and Science Evaluation

INTRODUCTION: Citation indexes are produced by counting de-contextualised citations, which result from the transformation of references into citations, generating two different objects -two different signs-. This causes an ambiguity of both signs which is relevant for citation indexes and for science evaluation. METHODOLOGY: Two methods were used: 1) Qualitatively: It is performed a semiotic analysis in order to distinguish between bibliographic references and citations in terms of electronic reference linking. 2) Quantitatively: Citations and references were counted within a relevant sample of papers from different scientific disciplines. RESULTS: Tthe number of bibliographic references is higher than the number of citations in the 100 % of the sample articles analysed. In many cases, the number of references is twice as the number of citations. The 30,1 % of the citations were referenced several times, for were counted just once. DISCUSSION: By considering references instead of citations, the following bibliometric laws and indicators are affected: Bradford / De Solla’s law, direct academic journal citations, bibliographic coupling, co-citation, impact factor and h-index. A semiotic ambiguity between references and citations causes a relevant error in science evaluation that can be avoided by the use of electronic reference linking

First limits on neutrinoless resonant 2EC in 136Ce and new limits for other 2beta processes in 136Ce and 138Ce isotopes

A small CeCl3 crystal (6.9 g) was measured deep underground (3600 m w.e.) at the Gran Sasso National Laboratories of the INFN (Italy) with a low background HP Ge detector (244 cm3) during 1280 h. The crystal is not polluted by 232Th, 40K, 60Co, 137Cs (limits were set on the activity at a level of 0.05-1 Bq/kg), but contains radioactive 138La (0.68 Bq/kg) and, probably, is polluted by 235U and 238U (0.3-0.7 Bq/kg). The half life limits for different double β processes in 136Ce and in 138Ce were set in the range of (1-6)×10 yr. In particular, the 2&z.epsiv; captures in 136Ce to various excited levels of 136Ba were considered for the first time. The limits for the resonant neutrinoless transitions to the 2392.1 keV and 2399.9 keV levels of 136Ba are: T>2.4×10 yr and T>4.1×10 yr at 90% C.L., respectively

Results from DAMA/LIBRA and perspectives

The DAMA/LIBRA experiment (about 250 kg of highly radiopure NaI(Tl)) is in operation at the Gran Sasso National Laboratory of the INFN. The main aim of the experiment is to further investigate the Dark Matter (DM) particles in the Galactic halo by exploiting the model independent DM annual modulation signature. At the time of this Workshop, the DAMA/LIBRA experiment and the former DAMA/NaI one (the first generation ex- periment having an exposed mass of about 100 kg) have released results corresponding to a total exposure of 1.17 ton × yr over 13 annual cycles; they have provided a model independent evidence of the presence of DM particles in the galactic halo at 8.9 σ C.L.. The results of a further annual cycle, concluding the DAMA/LIBRA–phase1, have been released after this Workshop and are not included here. After the upgrade at fall 2010 when all the PMTs have been replaced with new ones having higher quantum efficiency, the feasibility to decrease the software energy threshold has been demonstrated and the set-up is running in this new configuration, named DAMA/LIBRA–phase2

Recent results from DAMA/LIBRA-phase1 and perspectives

The DAMA/LIBRA{phase1 and the former DAMA/NaI data (cumulative exposure 1:33 ton yr, corresponding to 14 annual cycles) give evidence at 9.3 C.L. for the presence of Dark Matter (DM) particles in the galactic halo, on the basis of the exploited model independent DM annual modulation signature by using highly radio- pure NaI(Tl) target. Results and comparisons will be brie y recalled. Recent analyses on possible diurnal eects and on the Earth shadowing eect (the latter holds only for some DM candidates) will be mentioned. Finally, the perspectives of the running DAMA/LIBRA{phase2 will be mentioned

DAMA/LIBRA phase1 model independent results

Experimental observations and theoretical arguments at Galaxy and larger scales have suggested that a large fraction of the Universe is composed by Dark Matter (DM) particles. This has motivated the DAMA experimental efforts to investigate the presence of such particles in the galactic halo by exploiting a model independent signature with highly radiopure setups deep underground. In this paper, a review of the results obtained with the total exposure of 1.04 ton × yr collected by DAMA/LIBRA–phase1 deep underground at the Gran Sasso National Laboratory (LNGS) of the INFN during seven annual cycles is given. The DAMA/LIBRA–phase1 data give evidence for the presence of DM particles in the galactic halo, on the basis of the exploited model independent DM annual modulation signature by using highly radiopure NaI(Tl) target, at 7.5

Publicaciones del Instituto de Biología Aplicada. Tomos 48-49

[Tomo 48] E. Petitpiebre.—Variaciones morfológicas y de la genitalia en las Timarcha Lat. (Col. Chrysomelidae). Jorge Sabateb-Pí. —Aportación a la ecología de los Colobus polykomos satanas, Waterhouse 1838, de Río Muni (República de Guinea Ecuatorial). F. Español. — Notas sobre anóbidos (Col.). Manuel González. — El género Desbrochersella Reitter (Col. Curculionidae). Francisco Castelló. — Sobre la presencia del género Achanthochiton (Mol. Poliplaeophora) en las costas de la isla de Ibiza (Baleares). Mabía Rambla. — La especie Cosmobunus granarius (Lucas 1847) en la Península Ibérica y Norte de Africa. Jaime Isern.—Sobre Aspidosiphon clavatus (Sipunculoidea) del litoral de Blanes. Enrique Gadea. — Sobre la nematofauna muscícola de los Andes venezolanos. J. Mª Losa. — El Geaster triplex Juneh, característica de la asociación Buxo-Juniperetum phoeniceae Riv. Mart. Valentín Sans Coma. — Sobre la distribución de micromíferos del N. E. de la península ibérica, con algunasconsideraciones metodológicas.[Tomo 49] Benigno Román. — Nuevas especies de peces de Río Muni (Guinea Ecuatorial). Francisco Castelló. — Nota sobre la presencia de Chiton olivaceus en las islas Baleares. Esther Simón-Martínez. — Variación del nitrógeno mine ral en praderas experimentales. F. Español. — Notas sobre anóbidos (Col.). Enrique Gadea. — Algunas consideraciones sobre las nematocenosis de suelos primordiales. Giorgio Marcuzzi, Paola Pelusio e Silio Rigatti Luchini. — Osservazioni sulla variabilitá di due specie di Glomeris (Myriapoda, Diplopoda) nella regione di Asiago (Veneto). Mª Dolores Romero, F. Jiménez Millán y María Arias. — Interrelación de nematodos fitoparAsitos de algunos cultivos de solanáceas. F. J. Fernández Casas. — Notas sobre vegetación . Valentín Sans-Coma. — Algunos datos sobre los roedores de los Picos de Europa . V. Sans-Coma y J. Nadal-Puigdefábregas. — Sobre la distribución de Clethrionomys glareolus (Schreber, 1780) y Pitymys duodecimcostatus (de Sélys-Longchamps, 1839) en la Península ibérica.Peer reviewe

CdWO4 crystal scintillators from enriched isotopes for double beta decay experiments

Cadmium tungstate crystal scintillators enriched in 106Cd and 116Cd were developed. The produced scintillators exhibit good optical and scintillation properties, and a low level of radioactive contamination. Experiments to search for double beta decay of 106Cd and 116Cd are in progress at the Gran Sasso National Laboratories of the INFN (Italy). Prospects to further improve the radiopurity of the detectors by recrystallization are discussed