Abrupt climate changes of the last deglaciation detected in a Western Mediterranean forest record

Abrupt changes in Western Mediterranean climate during the last deglaciation (20 to 6 cal ka BP) are detected in marine core MD95-2043 (Alboran Sea) through the investigation of high-resolution pollen data and pollen-based climate reconstructions by the modern analogue technique (MAT) for annual precipitation (Pann) and mean temperatures of the coldest and warmest months (MTCO and MTWA). Changes in temperate Mediterranean forest development and composition and MAT reconstructions indicate major climatic shifts with parallel temperature and precipitation changes at the onsets of Heinrich stadial 1 (equivalent to the Oldest Dryas), the Bölling-Allerød (BA), and the Younger Dryas (YD). Multi-centennial-scale oscillations in forest development occurred throughout the BA, YD, and early Holocene. Shifts in vegetation composition and (Pann reconstructions indicate that forest declines occurred during dry, and generally cool, episodes centred at 14.0, 13.3, 12.9, 11.8, 10.7, 10.1, 9.2, 8.3 and 7.4 cal ka BP. The forest record also suggests multiple, low-amplitude Preboreal (PB) climate oscillations, and a marked increase in moisture availability for forest development at the end of the PB at 10.6 cal ka BP. Dry atmospheric conditions in the Western Mediterranean occurred in phase with Lateglacial events of high-latitude cooling including GI-1d (Older Dryas), GI-1b (Intra-Allerød Cold Period) and GS-1 (YD), and during Holocene events associated with high-latitude cooling, meltwater pulses and N. Atlantic ice-rafting. A possible climatic mechanism for the recurrence of dry intervals and an opposed regional precipitation pattern with respect to Western-central Europe relates to the dynamics of the westerlies and the prevalence of atmospheric blocking highs. Comparison of radiocarbon and ice-core ages for well-defined climatic transitions in the forest record suggests possible enhancement of marine reservoir ages in the Alboran Sea by 200 years (surface water age 600 years) during the Lateglacial

MIRACLE Progress in Monolingual Information Retrieval at Ad-Hoc CLEF 2007

This paper presents the 2007 MIRACLE’s team approach to the Ad-Hoc Information Retrieval track. The main work carried out for this campaign has been around monolingual experiments, in the standard and in the robust tracks. The most important contributions have been the general introduction of automatic named-entities extraction and the use of Wikipedia resources. For the2007 campaign, runs were submitted for the following languages and tracks: a) Monolingual: Bulgarian, Hungarian, and Czech. b) Robust monolingual: French, English and Portuguese

Das Konzil von Konstanz, 1414-1418. Band I: Bis zur Abreise Segismunds nach Narbonne (Reseña)

Reseña del libro de Walter BRANDMÜLLER, Das Konzil von Konstanz, 1414-1418. Band I: Bis zur Abreise Segismunds nach Narbonne. F. Schöningh (Konziliengeschichte. Reihe A: Darstellungen), Paderborn 1991, XXV-429 pp

Papst und Konzil im Grossen Schisma (1378-1431). Studien und Quellen (Reseña)

Reseña del libro de Walter BRANDMÜLLER, Papst und Konzil im Grossen Schisma (1378-1431). Studien und Quellen. Ferdinand Schöningh, Paderborn 1990, XXII-412 pp

El conflicto sobre las Islas Carolinas entre España y Alemania ( 1885). La mediación internacional de León XIII (Reseña)

Reseña del libro de Carlos CORRAL y Franco DÍAZ DE CERIO, El conflicto sobre las Islas Carolinas entre España y Alemania ( 1885). La mediación internacional de León XIII, Complutense, Madrid 1995, 254 pp