Decision Strategies for Incremental POS Tagging

Proceedings of the 18th Nordic Conference of Computational Linguistics NODALIDA 2011. Editors: Bolette Sandford Pedersen, Gunta Nešpore and Inguna Skadiņa. NEALT Proceedings Series, Vol. 11 (2011), 26-33. © 2011 The editors and contributors. Published by Northern European Association for Language Technology (NEALT) http://omilia.uio.no/nealt . Electronically published at Tartu University Library (Estonia) http://hdl.handle.net/10062/16955

Prehistoric chamber tombs or geological pitfall? A multimethod case study from Ancient Aigeira with a focus on seismic full‐waveform inversion

We show an extensive multimethod geophysical study of focusing on someenigmatic subsurface structures found at Ancient Aigeira (N Peloponnes, Greece) thatcould be interpreted either as prehistoric chamber tombs or complex weatheringpatterns of the local marl–conglomerate rock sequences. It turns out that the non-seismic methods do not allow to distinguish between an archaeological and a geologi-cal origin of the observed patterns with certainty. In contrast, we demonstrate howshear-wave seismics and full-waveform inversion (FWI) can be used in archaeologicalprospection for distinguishing between these alternative essentially differentinterpretational models that are not distinguishable through nonseismic prospectiondata. The example site Aigeira is strategically well located on a hill on the NorthernPeloponnese overlooking the Corinthian Gulf and has been inhabited with occupa-tional gaps since Middle Neolithic times until the 12th to early 14th centuryCE.Magnetics, ground-penetrating radar (GPR) and electrical resistivity tomography(ERT) reveal a honeycomb-shaped anomaly pattern that could have been interpretedas a system of prehistoric chamber tombs. The time-domain SH-FWI strategy basedon a sequential inversion of low-pass and band-pass filtered data results insubsurface models for shear-wave velocity and density that accurately fits the com-plicated seismic data set.With the help of the seismic survey, we can reject the interpretationhypothesis of a prehistoric cemetery with chamber tombs and confirm that theenigmatic geophysical patterns represent a geological weathering structure thatcould be addressed as a reincised fan delta draped by reddish palaeosols

Seismic full waveform inversion in archaeological prospecting

Seismic full waveform inversion is introduced as novel high-resolution imaging tool in archaeological prospection. The full waveform inversion approach allows the high-resolution characterization of low-contrast sedimentary layers, high-contrast stone wall structures and air-filled cavities

First results from stratigraphic investigation of Chiselet tell (Romania) using seismic full waveform inversion

In this paper we analyze the applicability of seismic full-waveform inversion (FWI) for investigation of tells, which are often characterized by heterogeneous and small-scale stratigraphy. Major aim is to identify location and shape of settlement layers and house remains. Furthermore, a paleochannel, which is important to understand the interaction between tell and the surrounding landscape, was found at the tell flank

Host dependence of the electron affinity of molecular dopants

International audienceCharge carriers energetics is key in electron transfer processes such as those that enable the electrical doping of organic semiconductors. In this study, we take advantage of the quantitative accuracy of embedded GW calculations to perform a series of virtual experiments that allow measuring the electron affinity of p-type dopants in different host solids. Our calculations show that the energy levels of a molecular impurity strongly depend on the host environment as a result of electrostatic intermolecular interactions. In particular, the electron affinity of a dopant impurity in a given semiconductor is found to be up to 1 eV lower than that of the pure dopant crystal. This result questions the pertinence of the electron affinity measured for pure dopants in order to predict doping efficiency in a specific host. The role of the Coulomb electron-hole interaction for the dopant-to-semiconductor charge transfer and for the release of doping-induced charges is discussed

Relatório de estágio em farmácia comunitária

Relatório de estágio realizado no âmbito do Mestrado Integrado em Ciências Farmacêuticas, apresentado à Faculdade de Farmácia da Universidade de Coimbr

Abweichendes Verhalten von Lehrkräften aus der Sicht von Schulleiterinnen und Schulleitern:eine qualitative Explorationsstudie über Workplace Deviance an Schulen der Sekundarstufe I in Mecklenburg-Vorpommern

Diese Studie widmet sich der Thematik Workplace Deviance im Schulbereich. Workplace Deviance, zu Deutsch Arbeitsplatzdevianz, ist motiviertes, freiwilliges, abweichendes Verhalten direkter Mitglieder einer Organisation, das das Wohl der Organisation bzw. das ihrer Mitglieder bedroht. Im Theorieteil werden Untersuchungsergebnisse zur Thematik aus verschiedenen Organisationen, insbesondere aus dem Bildungsbereich, zusammengetragen und das Forschungsprogramm Subjektive Theorien vorgestellt. Der empirische Teil beschreibt das Verfahren zur Aggregierung Subjektiver Theorien mittels der Heidelberger Struktur-Lege-Technik. Dieses Verfahren kommt in der Studie über Workplace Deviance im Schulbereich zur Anwendung. Im Ergebnis entstehen 20 individuelle Subjektive Theorien. Anschließend wird eine intersubjektive Theorie generiert. Die Einzeltheorien und die intersubjektive Theorie beschreiben jeweils eine Typologie von Arbeitsplatzdevianz, Handlungsmöglichkeiten von Schulleitern im Zusammenhang mit dem Auftreten von Arbeitsplatzdevianz und mögliche Konsequenzen des Auftretens. <br

A novel seismic full waveform inversion approach for assessing the internal structure of a medieval sea dike

AbstractCoastal protection in the form of dike constructions has a long history at the German North Frisian coast dating back to the High Middle Ages. As the vast majority of the dikes built prior to the devastating storm surges of the Middle Ages have been irretrievably destroyed, mostly sparse remains and only a few well preserved of these medieval dikes are found along the German North Frisian coast and within the Wadden Sea. Not all details of their construction and dimensions are yet understood. In the present case study, we investigate the historical Schardeich on the island of Pellworm in the German North Sea in a noninvasive way using shear waves (SH‐waves). For the data interpretation, we applied a combination of seismic full waveform inversion and classical seismic reflection imaging to determine the interior structure of the dike and its underlying layers at the highest possible resolution. The results obtained on land are compared with dike remains found in the tidal flats. These remains show up in marine seismic sections as characteristic reflections, which probably represent a compaction layer caused by the load of the former dike. For ground truthing, we compare the seismic results with internal dike structures found in nearby excavations. The comparison highlights that FWI is a reliable tool for near‐surface archaeological prospecting. We find that SH‐wave FWI provides decimetre‐scale velocity and density models that allow, together with the seismic reflection section, to determine distinct construction phases of the dike. The investigated dike further shows a depression at base level of about 0.75 m, which is of the same order as observed for the dike base reflections in the tidal flats. Transferring these findings to the dike remains mapped in the tidal flats, we derive a height of the former dike from 2.2 to 4.4 m.Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/50110000165