118,998 research outputs found
1977 Jay-Cee-An BJC--Page 139
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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
Synthetic Escherichia coli-Corynebacterium glutamicum consortia for L-lysine production from starch and sucrose
No full textSgobba E, Stumpf AK, Vortmann M, et al. Synthetic Escherichia coli-Corynebacterium glutamicum consortia for L-lysine production from starch and sucrose. Bioresource Technology. 2018;260:302-310
Leptolepis Agassiz 1832
No full textLeptolepis Agassiz, 1832 Type species. Leptolepis coryphaenoides (Bronn, 1830). Content. L. coryphaenoides (Bronn, 1830); L. normandica Nybelin, 1962; L. jaegeri Agassiz, 1832; L. autissiodorensis Sauvage, 1892; L. saltviciensis Simpson, 1855; L. woodwardi Nybelin, 1974, L. nathorsti Woodward, 1900. Geographical distribution. Lower to Middle Jurassic sediments of: Spitsbergen, Svenskøja (Svalbard, Norway); Neudingen, Dormettingen, Holzmaden, Zell, Boll (Baden-Württemberg, Germany); Dobbertin, Grimmen (Mecklenburg-Western Pomerania, Germany); Salzgitter, Schandelah, Hondelage (Lower Saxony, Germany); Le Cain, Curcy (Normandy, France), Dumbleton, Gretton, Ilminster (England, Great Britain); Bergamo (Lombardy, Italy) (data from Wenz 1968; Nybelin 1974; Tintori 1977; this paper). Stratigraphical distribution. Lower Jurassic, lower Toarcian to Middle Jurassic, Callovian.Published as part of Konwert, Martin & Stumpf, Sebastian, 2017, Exceptionally preserved Leptolepidae (Actinopterygii, Teleostei) from the late Early Jurassic Fossil-Lagerstätten of Grimmen and Dobbertin (Mecklenburg-Western Pomerania, Germany), pp. 249-296 in Zootaxa 4243 (2) on page 257, DOI: 10.11646/zootaxa.4243.2.2, http://zenodo.org/record/39908
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
Processo de grafia da língua de sinais: uma análise fono-morfológica da escrita em signwriting
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Linguística, Florianópolis, 2011A Comunidade Surda do Brasil legitima a Língua Brasileira de Sinais - Libras como língua oficial para a maioria dos surdos dos centros urbanos deste país, sendo então a língua portuguesa adotada (na modalidade escrita) como segunda língua. Partindo desse principio, o fortalecimento da cultura do bilinguismo se consolidará a partir do estabelecimento de uma alfabetização escolar que preconize o aprendizado da escrita e da leitura das duas línguas que coadunam este ambiente linguístico. O bilinguismo pleno acontece quando o Surdo é capaz de escreverem sua própria língua, através de um sistema que compreenda a língua de sinais - uma língua visual. Desde modo, a presente pesquisa visa analisar o desenvolvimento da Escrita de Língua de Sinais - ELS de Surdos usuários do sistema SignWriting. Apesquisa analisou quais ocorrências explicam a padronização ou variação da ELS de Surdos brasileiros. Para isso foi elaborado um quadro modelo com 20 sinais da Libras escrito em SW, cuja finalidade foi compará-los com os produzidos pelos sujeitos Surdos. Esse trabalho foi desenvolvido por meio de um estudo de caso, do tipo multicaso. Participaram do experimento quatro Surdos conhecedores do sistema. Os instrumentos de coleta utilizados foram: uma entrevista semi-estruturada e uma atividade de produção escrita. A análise das entrevistas indicou que o curso de Letras-Libras teve significativa contribuição na difusão e uso do sistema criado por Sutton, e que a leitura em SW tem um ritmo próprio mais lento, porém mais compreensiva para os sujeitos Surdos que a leitura em LP. As entrevistas também sugerem uma atualização no sistema de edição SW-Edit quanto à organização das CM's. A análise da produção escrita revelou que as ordens predominantes dos símbolos dos parâmetros grafológicos da Libras em pilha são as seguintes: a) para todos os sinais; CM no centro, símbolo de contato à esquerda e símbolo de movimento à direita, ou seja,(ContatoMov.) b) para sinais com PA na cabeça; símbolo de cabeça no centro, símbolo de contato, de configuração de mão e de movimento à direita, ou seja, (Cabeça:Contato>CM>Mov). Além disso as produções evidenciaram que o símbolo de contato é o principal elemento de ligação de uma pilha, onde não é permitido mais de um tipo por pilha. A particularidade da escrita se apresentou nas escolhas dos símbolos de contato e de movimento, visto que cada sujeito escreve o mesmo sinal a partir da sua "pronúncia" com suas variações característica da alofonia da língua. Deste modo, a ELS, conforme as ocorrências aqui registradas, se desenvolve em aspectos fono-morfológicos semelhantes aos nivés de escrita da língua oral. Esta pesquisa é pioneira e pode colaborar com os pressupostos da Psicogênese da Língua Escrita para crianças surdas.Abstract: Brazilian deaf community has just recently legitimated the Brazilian Sign Language - Libras, as its own official language. For that reason the Portuguese language has stepped down and is now considered the community's second language (L2). This is seen as a platform for the strengthening of a bilingual culture that will consolidate with the establishment of a teaching program that advocates the learning of writing and reading the two languages that is now part of Brazilian linguistic environment. Full bilingualism is reached when a deaf person is able of writing in his own language by means of a system that comprehends sign language. Therefore this research reviewed the process of utilization of sign language writing by deaf users of the SignWriting system. It also reviewed a number of different events that account for standardization or variation in sign language writing. Four deaf subjects with previous knowledge of SignWriting took part in the research which comprised of a case study of the multi-case type. A template with 20 signs of LIBRAS written in SignWriting was used for the purpose of comparing them to the subjects' own production of the same signs. Interviews and writing tests were used for data collecting. Interview assessment later indicated that the Letras-Libras course substantially contributed to the spread and usage of the system created by Sutton and despite its slower paced reading feature SW provides high level of understanding. The interviews also suggested the need for updates of the SW-Edit computer program concerning Hand Configuration arrangement. Results of the writing tests revealed that the prevailing orders of the symbols of LIBRAS graphological parameters in a stack are: a) for all signs: Hand Configuration at center, contact symbol to the left and movement symbol to the right (ContacMov); b) for signs with articulation point on the head: head symbol in the center; contact symbol, hand configuration and movement symbols to the right(Head: Contact>HC>Mov). It was also demonstrated that the contact symbol is the main connecting element in a stack. A stack can only have one connecting element type. The particularity of Sign Writing surfaced in the choices for contact and movement symbols as each participant writes the same symbol according to his own "pronunciation" together with its variations which arepeculiar to the allophones of the language. This research showed that the grapho-morphological aspects of Sign Language Writing evolve along the same levels of writing of the spoken language.This is a pioneer research that will greatly aid broadening the concepts and reach of the psychogenesis of written language for deaf children
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
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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