Semantikan oinarritutako bilaketak: Kyoto proiektua

Semantic-based research: Kyoto Project. In the digital management of documentation, the use of the text itself can be very interesting, in addition to the descriptors. Many descriptors are also text. The use of linguistic engineering techniques opens up new options for accessing information from these databases: multilingual access, semantic grouping, access based on similarity, question-answer systems, information inference, etc. This paper looks in more detail at the possibilities based on semantics, setting out the research areas being developed by the authors as part of the European Kyoto project

Meaningful results for Information Retrieval in the MEANING project

The goal of the MEANING project (IST-2001-34460) is to develop tools for the automatic acquisition of lexical knowledge that will help Word Sense Disambiguation (WSD). The acquired lexical knowledge from various sources and various languages is stored in the Multilingual Central Repository (MCR) (Atserias et al 04), which is based on the design of the EuroWordNet database. The MCR holds wordnets in various languages (English, Spanish, Italian, Catalan and Basque), which are interconnected via an Inter-Lingual-Index (ILI). In addition, the MCR holds a number of ontologies and domain labels related to al

Semantikan oinarritutako bilaketak: Kyoto proiektua

Semantic-based research: Kyoto Project. In the digital management of documentation, the use of the text itself can be very interesting, in addition to the descriptors. Many descriptors are also text. The use of linguistic engineering techniques opens up new options for accessing information from these databases: multilingual access, semantic grouping, access based on similarity, question-answer systems, information inference, etc. This paper looks in more detail at the possibilities based on semantics, setting out the research areas being developed by the authors as part of the European Kyoto project

Getting there fast: Globalization, intercontinental flights and location of headquarters

Information exchanges across firms within cities are considered to be one of the major agglomeration forces in the regional economics literature. In addition, the quality of transport infrastructures arises as one of the major determinants in the location decisions of firms across cities and hence on urban economic growth. However, the significance of information exchanges between cities and the role of airports as a mean of managing such information efficiently has received much less attention. We deal with these issues through the empirical analysis of the determinants of the location of large firms´ headquarters across major European urban areas, focusing the attention on the attractiveness of a city for large firms due to the supply of non-stop intercontinental flights.Headquarters, Airports, Information.

Dividends from Your Investment: 1964 Annual Report

This is the 1964 annual report of the Cooperative Extension Service

The Isocyanoarene Motif in Organometallic Crystal Engineering and New Azulene-Based Organometallics

Isocyanides (:CN-R) and their metal complexes play an important role in many areas including synthetic organic chemistry, catalysis, diagnostic medicine, as well as surface, polymer, and materials sciences. The rich chemistry of isocyanides stems from the tunability of the molecular and electronic structure through variations of the substituent R. Isocyanides represent a rather versatile class of ligands and can accommodate metal ions in both high and low oxidation states upon complexation. Isocyanoarene derivatives have been shown to be effective in the design of charge transport materials (e.g., molecular wires). In addition, di- and other polyisocyanoarenes have been employed as building blocks in the coordination chemistry of polynuclear organometallics. In the past decade, Barybin et al. have developed the chemistry of electron-rich compounds and materials that incorporate isocyanoarene ligands featuring nonbenzenoid aromatic azulenyl and η5-cyclopendadienyl substituents. In this Dissertation, isocyanide-terminated benzenoid and nonbenzenoid arenes as well as the organometallic complexes thereof are discussed. Chapter I constitutes a review of recent developments in the chemistry of isocyanoarenes as ligands in low-valent organometallics. Particular emphases are placed on (1) isocyanometalates (isocyanide complexes of metals in negative oxidation states), (2) low-coordinate complexes of extremely bulky isocyanoarenes, and (3) the chemistry of nonbenzenoid isocyanoarenes. The first part of Chapter II is dedicated to the chemistry of an unusual supramolecular charge-transfer ensemble ([Cp2Co]2[{(OC)5V}2(μ-CNC6Me4NC)])∞ (Cp = cyclopentadienyl) held together via synergistic π-stacking and contact-ion interactions. This three-dimensional, porous framework features channels capable of housing linear molecules such as acetonitrile, carbon dioxide, etc., and offers new opportunities in organometallic crystal engineering. The second part of Chapter II describes preliminary studies on the interaction of the novel 2-isocyano-1,3-dimethylazulene ligand with sub-valent metal ions (e.g., Co(I-) and Fe(II-)). Chapter III of this Dissertation describes the syntheses and coordination chemistry of the polar, linear 2-isocyano-1,3-diethoxycarbonyl-2',6-biazulene ligand and related species. Detailed electrochemical and spectroscopic studies of these novel ligands and their low-valent homoleptic complexes shed light on electron delocalization between the azulenic/biazulenic π-systems and electron-rich metal ions mediated by the isocyanide junction. In Chapter IV, synthetic studies toward a family of azulene-based metal-organic frameworks are described. Two-dimensional, rectangular metal-organic frameworks were formed by bridging {Cp*ClIr(III)} corner fragments (Cp* = pentamethylcyclopentadienyl) with either asymmetric 2,6-diisocyanoazulenic or symmetric 2,2'-diisocyano-6,6'-biazulenic ditopic edge units. 16-Electron metal carbonyl units, namely [Cr(CO)5], were employed as end caps to control orientation of the molecular dipole of 2,6-diisocyano-1,3-diethoxycarbonylazulene within tetrametallic molecular frameworks

The Lindenwood College Bulletin, January 1921

Lindenwood College alumni magazine.https://digitalcommons.lindenwood.edu/alumni_bulletin/1434/thumbnail.jp

Solar Terrestrial programs: A five year plan

Major projects to be initiated in the 1980-1985 period, designed to study the Sun, the heliosphere, Earth's magnetosphere, and the upper atmosphere involve the use of spacelab as well as free flying spacecraft. Current and recent investigations in these areas are reviewed and the guiding principles followed in planning future missions are examined. The implementation strategy, the planning process, and supporting research and technology are discussed

Homocysteine and coronary atherosclerosis

AbstractHomocysteine is increasingly recognized as a risk factor for coronary artery disease. An understanding of its metabolism and of the importance of vitamins B6and B12and folate as well as enzyme levels in its regulation will aid the development of therapeutic strategies that, by lowering circulating concentrations, may also lower risk. Possible mechanisms by which elevated homocysteine levels lead to the development and progression of vascular disease include effects on platelets, clotting factors and endothelium. This review presents the clinical and basic scientific evidence supporting the risk and mechanisms of vascular disease associated with elevated homocysteine concentrations as well as the results of preliminary therapeutic trials