8,300 research outputs found

    Coexistence of bounded and unbounded geometry for area-preserving maps

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    The geometry of the period doubling Cantor sets of strongly dissipative infinitely renormalizable H\'enon-like maps has been shown to be unbounded by M. Lyubich, M. Martens and A. de Carvalho, although the measure of unbounded "spots" in the Cantor set has been demonstrated to be zero. We show that an even more extreme situation takes places for infinitely renormalizable area-preserving H\'enon-like maps: bounded and unbounded geometries coexist with both phenomena occuring on subsets of positive measure in the Cantor sets

    Public and Private Law in the Global Adjudication System: Three Questions to the Panelists

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    Studien syftar till att undersöka Norrköping och Finspångs kommuns kommunikationsprocesser gällande hållbar avfallshantering. Genomintervjuer med tjänstemän från Norrköping och Finspångs kommun klarläggs kommunernas uppfattning samt tillvägagångssätt förkommunikationen av avfallshantering till sina invånare. En textanalys på kommunernas kommunikativa material om avfallshantering utredervidare vilka strategier som används för att nå ut till invånarna. Studien klargör även hur kommunerna definierar och förmedlar en hållbaravfallshantering. För att sätta studien i ett större perspektiv diskuteras studiens analys sedan i förhållande till tidigare forskning. Resultatet av studien visar bland annat att Norrköping och Finspångs kommuns planering av kommunikationen börjar i olika skeden avkommunikationsprocessen. Det klargörs även att kommuners organisering påverkar kommunikationen med invånarna. En tidig strategisk planering av kommunikation till invånarna underlättar för kommuners kommunikationsprocess. I Norrköping och Finspångs kommuns kommunikativa material används det tydliga strategier för att nå ut till invånarna, dessa strategier anses också vara bra utifrån tidigare forskning. Kommuner bör därmed använda sig av en kommunikation som är målgruppsanpassad, involverar individen, har ett lokalt perspektiv, samt har en positiv framtoning. Gällande hållbar avfallshantering finns det i båda kommunerna ett fokus på tredje steget i EU:s avfallshierarki, återvinning. Studiens resultat kan användas av andra kommuner för att förbättra kommunikationen till invånarna

    Temporal dynamics of semantic relations in word embeddings: an application to predicting armed conflict participants

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    This paper deals with using word embedding models to trace the temporal dynamics of semantic relations between pairs of words. The set-up is similar to the well-known analogies task, but expanded with a time dimension. To this end, we apply incremental updating of the models with new training texts, including incremental vocabulary expansion, coupled with learned transformation matrices that let us map between members of the relation. The proposed approach is evaluated on the task of predicting insurgent armed groups based on geographical locations. The gold standard data for the time span 1994--2010 is extracted from the UCDP Armed Conflicts dataset. The results show that the method is feasible and outperforms the baselines, but also that important work still remains to be done.Comment: to appear in EMNLP 2017 proceeding

    Redefining part-of-speech classes with distributional semantic models

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    This paper studies how word embeddings trained on the British National Corpus interact with part of speech boundaries. Our work targets the Universal PoS tag set, which is currently actively being used for annotation of a range of languages. We experiment with training classifiers for predicting PoS tags for words based on their embeddings. The results show that the information about PoS affiliation contained in the distributional vectors allows us to discover groups of words with distributional patterns that differ from other words of the same part of speech. This data often reveals hidden inconsistencies of the annotation process or guidelines. At the same time, it supports the notion of `soft' or `graded' part of speech affiliations. Finally, we show that information about PoS is distributed among dozens of vector components, not limited to only one or two features

    Farmer research and extension

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    In this brief, we learn that "combining technical innovations with collective action initiatives has been shown to lead to substantial farmer benefits. A number of farmer-led research and extension (FRE) approaches incorporate collective action for different purposes and at different stages in the innovation process. Collective action can be useful in sharing knowledge, setting priorities, and experimenting with, evaluating, and disseminating technologies." The authors describe various participatory research approaches such as farmer field schools (FFSs), local agriculture research committees (CIALs), farmer research groups (FRGs), and farmer innovation approaches (FIAs) from Text.Poverty alleviation ,Collective action ,

    Molecular cloning and sequence analysis of the cDNA encoding the human acrosin-trypsin inhibitor (HUSI-II)

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    A complete cDNA clone encoding the human acrosin-trypsin inhibitor HUSI-II has been isolated from a cDNA library of human testis and completely sequenced. The cDNA of 594 bp contained an open reading frame of 252 base pairs, The deduced amino acid sequence comprised the complete amino acid sequence of HUSI-II[1] and a putative signal peptide. Northern blotting analysis revealed that HUSI-II is synthesized in testis, epididymis and seminal vesicle, but not in the prostate gland

    Analysis of Participatory Research Projects in the International Maize and Wheat Improvement Center

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    Through a survey of scientists from the International Maize and Wheat Improvement Center (CIMMYT) in 2004, this study assessed the extent to which participatory methods had been used by the center, how they were perceived by the scientists, and how participatory research could be applied more effectively by CIMMYT and partners. Results for 19 CIMMYT projects suggest among other things that participatory approaches at the center were largely “functional”—that is, aimed at improving the efficiency and relevance of research—and had in fact added value to the research efforts. The authors suggest that CIMMYT should (1) create a more conducive environment for scientists to share experiences on such approaches and (2) better document their impacts on farmers’ livelihoods and well-being.Economic analysis, Research projects, Research methods, Quantitative analysis, Surveys, Statistics, Evaluation, Scientists, Research institutions, Mexico., Crop Production/Industries, Research and Development/Tech Change/Emerging Technologies, E10, A50,
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