187 research outputs found

    Green resources in plain sight: opening up the SweFN++ project

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    Proceedings of the NODALIDA 2011 Workshop Visibility and Availability of LT Resources. Editors: Sjur Nørstebø Moshagen and Per Langgård. NEALT Proceedings Series, Vol. 13 (2011), 7–10. © 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/10062/1697

    All in the Family: A Comparison of SALDO and WordNet

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    Proceedings of the NODALIDA 2009 workshop WordNets and other Lexical Semantic Resources — between Lexical Semantics, Lexicography, Terminology and Formal Ontologies. Editors: Bolette Sandford Pedersen, Anna Braasch, Sanni Nimb and Ruth Vatvedt Fjeld. NEALT Proceedings Series, Vol. 7 (2009), 7-12. © 2009 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/10062/9209

    Semantic search in literature as an e-Humanities research tool: CONPLISIT — Consumption patterns and life-style in 19th century Swedish literature

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    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), 58-65. © 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

    Incidence and cost of cutting cracks in storm damaged forest

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    The aim for this study where to investigate the frequency of cutting cracks in saw timber harvested in the storm-damaged forests in regions where the storms Hilde and Ivar hit. The idea for this work came from one of the region’s biggest actors, SCA Skog and Jämtlands district. The purpose where to find out how big proportion of the saw timber that contains cutting cracks, their financial cost in lost wood value and also give advice and suggestions on how to work against the frequency of cutting cracks. For the field-study some guidelines where used to make sure that the samples were taken under the same conditions, they were: • The field-study must be performed under harvesting of storm-felled forest, which are horizontal/inclined trunks. • The averaged sized tree will make it possible to harvest saw timber. • The trunks can’t be root cut. A methodology called in Swedish “Trissmetoden” was used because it is the most frequent used methodology in earlier performed studies and the only one that can be used I field. Under the field-study data were collected from 570 saw timber logs, 30 logs from each one of the tested harvesters. Logs of log-types middle- and topplogs of pine and spruce was cheched and were a part of the study. 56 percent of the logs were pinelogs and 44 percent of the cheched logs were sprucelogs. 85,3 percent of the logmaterial had an diameter between 16 cm and 24 in rootdiameter and 74,4 percent had lengths between 37 dm and 49 dm. In average of the 19 controlled harvesters there were 28 percent cutting cracks and it was a small different between the tree species, spruce had an higher frequency cracked logs but only 2,7 percent higher frequency. The crack frequency increased especially for logs with a diameter ≥30 cm and length ≥49. A comparison between different harvesting-head manufacturers was made and the two manufacturers that had most tested harvesting-heads were John Deere and Komatsu. John Deere’s harvesting-heads produced timber with fewest cutting-cracks, they had a cut frequency of 18 percent in average and were the best among the manufacturers while Komatsu had 30 percent. Other manufacturers that were included in the study was Logmax, Ponsse and SP. The average crack for both tree species were 8,4 cm long but the pine had a tendency to crack more. In average did the cutting crack occurred after that 75 percent of the trunks diameter were cut thru. The wood loss that occurs while harvesting windfalls due to cutting cracks and shortening of the average crack length to get crack free timber were 0,54 percent of the harvested saw timber volume. But with shortening of a length module at 30 cm the wood loss was 2,01 percent of the harvested saw timber volume

    Mining semantics for culturomics: towards a knowledge-based approach

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    The massive amounts of text data made available through the Google Books digitization project have inspired a new field of big-data textual research. Named culturomics, this field has attracted the attention of a growing number of scholars over recent years. However, initial studies based on these data have been criticized for not referring to relevant work in linguistics and language technology. This paper provides some ideas, thoughts and first steps towards a new culturomics initiative, based this time on Swedish data, which pursues a more knowledge-based approach than previous work in this emerging field. The amount of new Swedish text produced daily and older texts being digitized in cultural heritage projects grows at an accelerating rate. These volumes of text being available in digital form have grown far beyond the capacity of human readers, leaving automated semantic processing of the texts as the only realistic option for accessing and using the information contained in them. The aim of our recently initiated research program is to advance the state of the art in language technology resources and methods for semantic processing of Big Swedish text and focus on the theoretical and methodological advancement of the state of the art in extracting and correlating information from large volumes of Swedish text using a combination of knowledge-based and statistical methods

    Linking and Validating Nordic and Baltic Wordnets - A Multilingual Action in META-NORD

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    This project report describes a multilingual wordnet initiative embarked in the META-NORD project and concerned with the validation and pilot linking between Nordic and Baltic wordnets. The builders of these wordnets have applied very different compilation strategies: The Danish, Icelandic and Swedish wordnets are being developed via monolingual dictionaries and corpora and subsequently linked to Princeton WordNet. In contrast, the Finnish and Norwegian wordnets are applying the expand method by translating from Princeton WordNet and the Danish wordnet, DanNet, respectively. The Estonian wordnet was built as part of the EuroWordNet project and by translating the base concepts from English as a first basis for monolingual extension. The aim of the multilingual action is to test the perspective of a multilingual linking of the Nordic and Baltic wordnets and via this (pilot) linking to perform a tentative comparison and validation of the wordnets along the measures of taxonomical structure, coverage, granularity and completeness.Peer reviewe

    Brief isoflurane anesthesia regulates striatal AKT-GSK3 beta signaling and ameliorates motor deficits in a rat model of early-stage Parkinson's disease

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    Parkinson's disease (PD) is a progressive neurodegenerative movement disorder primarily affecting the nigrostriatal dopaminergic system. The link between heightened activity of glycogen synthase kinase 3 beta (GSK313) and neurodegenerative processes has encouraged investigation into the potential disease-modifying effects of novel GSK3 beta inhibitors in experimental models of PD. Therefore, the intriguing ability of several anesthetics to readily inhibit GSK3 beta within the cortex and hippocampus led us to investigate the effects of brief isoflurane anesthesia on striatal GSK3 beta signaling in nave rats and in a rat model of early-stage PD. Deep but brief (20-min) isoflurane anesthesia exposure increased the phosphorylation of GSK3 beta at the inhibitory Ser9 residue, and induced phosphorylation of AKT(Thr308) (protein kinase B; negative regulator of GSK3 beta) in the striatum of naive rats and rats with unilateral striatal 6-hydroxydopamine (6-OHDA) lesion. The 6-OHDA protocol produced gradual functional deficiency within the nigrostriatal pathway, reflected as a preference for using the limb ipsilateral to the lesioned striatum at 2 weeks post 6-OHDA. Interestingly, such motor impairment was not observed in animals exposed to four consecutive isoflurane treatments (20-min anesthesia every 48 h; treatments started 7 days after 6-OHDA delivery). However, isoflurane had no effect on striatal or nigral tyrosine hydroxylase (a marker of dopaminergic neurons) protein levels. This brief report provides promising results regarding the therapeutic potential and neurobiological mechanisms of anesthetics in experimental models of PD and guides development of novel disease-modifying therapies.Peer reviewe
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