117,359 research outputs found
Cross-linguistic and cognitive aspects in the acquisition of WH-questions in an Italian-Indonesian bilingual child
No full textThis chapter examines language development in a bilingual child growing up with two typologically distinct languages – Italian and Jakarta Indonesian. It presents a case study of unbalanced bilingualism and focuses on the development of WH-forms and concludes that dominance of the loose Indonesian syntactic pattern results in a non-target word order in the construction of early WH-questions in Italian. In conclusion, the chapter identifies cross-linguistic structures in quantitative and qualitative perspectives and hypothesizes theoretical explanations for cross-linguistic dominance and the gradual emergence of correct usage of Italian grammatical structures. In so doing, the study considers how children recognize languages as separate systems and how they gradually develop the cognitive patterns required for competence in separate though practically co-extensive linguistic domains
La Prima Addizione “Organocatalizzata” di 2-Trimetilsililossifurano ad Aldeidi: Rapido Accesso a g-Butenolidi Variamente Sostituiti
No full textEnzymatic desymmetrization of a prochiral 1,3,5-pentanetriol derivative. Application to the synthesis of a cyanobacterial heterocyst glycolipid
No full text(R)-3-t-butyidimethylsilyloxy-5-acetoxy-l-pentanhoal s been obtained by PFL catalyzed hydrolysis of
the corresponding diacetate and has been utilized for the formal synthesis of the most widespread heterocyst
glycolipid of N2-fixing cyanobacteri
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Derivati Ureidici e Tioureidici: Organocatalizzatori Efficienti nella Reazione di Etero Diels-Alder
No full text
Square Dancing with the Stars to Enhance Dynamic Hirschman Linkages?
No full textIn this Presidential Address, the author takes the reader on a reconnaissance of his life and time as a regional scientist. He points out scenery he found scintillating along the way, hoping that some may pick up the banner and chew on a few of the ideas for a while. He suggests a revisit to Albert O. Hirschman’s notion of key sectors and more empirical analysis related to Marcus Berliant’s and Masahisa Fujita’s notion of knowledge creation and transfer.Presidential Address, San Antonio, Texas, March 29, 2014 (53rd Meetings of the Southern Regional Science Association
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Letter from unknown writer to Jesse L. Boyce
No full textLetter to Jesse L. Boyce from unknown author (possibly Jack) about the investigation into the powder magazine located in the Grand Canyon. Some personal news is included in the letter such as the writer's marriage to the daughter of C.A. Taylor, former Supervisor of Cochise County
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