178,241 research outputs found
Static and dynamic moduli of the seismogenic layer in Italy
No full textStatic and dynamic elastic moduli of Calcare Massiccio (mudstone-limestone) have been measured as a function of frequency over nine decades, using three different standard methods: uniaxial 'static' compression, dual cantilever forced oscillations, and measurement of ultrasonic velocities. An accurate critical comparison using the same techniques on a poly-methyl-methacrylate (PMMA) material shows that an unresolvable 10 to 20% bias exists in the two 'low' frequency standard techniques, whereas the ultrasonic measurements are more accurate and reproducible within 5%. No significant frequency dependence is found for Calcare Massiccio, which gives a Young's modulus of (75 +/- 7) GPa and a Poisson ratio of (0.28+/-0.02)
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
Martín Almagro Basch, José de C. Serra Ráfols y José Colominas Roca, Carta Arqueológica de España
No full textEtienne R. Martín Almagro Basch, José de C. Serra Ráfols y José Colominas Roca, Carta Arqueológica de España. In: Bulletin Hispanique, tome 56, n°1-2, 1954. pp. 200-201
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
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
Early American medical imprints, 1668-1820. Subject, name, and format index to the microfilm collection / compiled by Bertha R. Almagro.
No full textIndex to microfilm collection: Early American medical imprints; filmed from the bibliography Early American medical imprints / by Robert B. Austin. Contains: Austin, Robert B. Early American medical imprints Bib 13458
Letter from R. R. Zellick, Assistant Trust Officer, Anglo California National Bank of San Francisco, to Joseph R. Goodman, October 2, 1942
No full textLetter from R. R. Zellick, Assistant Trust Officer at The Anglo California National Bank of San Francisco, to Joseph R. Goodman, regarding property owned by Dave Tatsuno. Zellick mentions a dispute between current tenants and Tatsuno, and that Tatsuno has asked Goodman to help locate trustworthy tenants.Personal correspondence, organizational records, government documents, publications, and other papers created or collected by Joseph R. Goodman documenting the forced removal and incarceration of Japanese Americans during World War II, as well as organized resistance to incarceration. Included in the collection are records of the Japanese Young Men's Christian Association and the Japanese American Citizens' League in San Francisco, including papers of the Japanese YMCA's executive secretary Lincoln Kanai; Sakai family papers; Goodman's correspondence to and from Japanese American incarcerees, organizations opposing forced removal and incarceration of Japanese Americans, the War Relocation Authority, and others; publications, photographs, and ephemera from the Topaz Relocation Center, where Goodman taught high school; War Relocation Authority records and publications; and newspaper clippings, pamphlets, and reports about forced removal and incarceration created by various government, religious, and civic organizations, in California and nationwide
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
Enhancing conservation and use of local vegetable landraces: the Almagro eggplant (Solanum melongena L.) case study
No full textWe have used the Almagro pickling eggplant landrace as a model for the enhancement of a local vegetable landrace. The programme has included characterization, selection, and breeding activities. Considerable intra-landrace diversity has been found for morphological traits and molecular markers. Characteristic morphological traits have allowed its registration as conservation variety. Also, universal and specific simple sequence repeat markers have been found for the Almagro landrace. The chemical characterization revealed that Almagro eggplant has a high content in bioactive phenolics. Organoleptic tests revealed that pickles produced with Almagro eggplant are superior to those of the related Andalusian landrace. The selection programme has led to the development of a pure line with increased yield and reduced fruit calyx prickliness. A participatory breeding programme, in which selection is made by farmers in their own field, has been initiated to introduce the no-prickles trait from three other varieties in the genetic background of the Almagro eggplant. The results of the programmes show that plants with the Almagro eggplant ideotype and with reduced prickliness can be selected in the backcross generations. As a result of the enhancement programme the acreage and total production of Almagro eggplant has tripled in the last decade.This work has been partially funded by Junta de Comunidades de Castilla-La Mancha (HITO-2010-112) and by the Ministerio de Economia y Competitividad (AGL2012-34213). Authors are grateful to the community of farmers associated to the PGI "Berenjena de Almagro'' for their involvement in the participatory enhancement programme.Hurtado Ricart, M.; Vilanova Navarro, S.; Plazas Ávila, MDLO.; Gramazio, P.; Andújar Pérez, I.; Herraiz García, FJ.; Castro, A.... (2014). Enhancing conservation and use of local vegetable landraces: the Almagro eggplant (Solanum melongena L.) case study. Genetic Resources and Crop Evolution. 61(4):787-795. https://doi.org/10.1007/s10722-013-0073-2S787795614Botonaki A, Polymeros K, Tsakiridou E, Mattas K (2006) The role of food quality certification on consumers’ food choices. Br Food J 108:77–90Ciancaleoni S, Chiarenza GL, Raggi L, Branca F, Negri V (2013) Diversity and characterization of broccoli (Brassica oleracea L. var. italica Plenck) landraces for their on-farm (in situ) safeguard and use in breeding programmes. Genet Resour Crop Evol doi: 10.1007/s10722-013-0049-2Doganlar S, Frary A, Daunay MC, Lester RN, Tanksley SD (2002) Conservation of gene function in the Solanaceae as revealed by comparative mapping of domestication traits in eggplant. Genetics 161:1713–1726Gómez OJ, Blair MW, Frankow-Lindberg BE, Gullberg U (2005) Comparative study of common bean (Phaseolus vulgaris L.) landraces conserved ex situ in genebanks and in situ by farmers. Genet Resour Crop Evol 52:371–380Hammer K, Diederichsen A (2009) Evolution, status and perspectives for landraces in Europe. In: Veteläinen M, Negri V, Maxted N (eds) European landraces: on-farm conservation, management, and use. Bioversity Technical Bulletin No. 15, Bioversity International, Rome, pp 23–44Hammer K, Gladis Th, Diederichsen A (2003) In situ and on-farm management of plant genetic resources. Eur J Agron 19:509–517Hurtado M, Vilanova S, Plazas M, Gramazio P, Fonseka HH, Fonseka R, Prohens J (2012) Diversity and relationships of eggplants from three geographically distant secondary centers of diversity. PLoS ONE 7:e41748Muñoz-Falcón JE, Prohens J, Vilanova S, Ribas F, Castro A, Nuez F (2009) Distinguishing a protected geographical indication vegetable (Almagro eggplant) from closely related varieties with selected morphological and molecular markers. J Sci Food Agric 89:320–328Pessarakli MM, Dris R (2004) Pollination and breeding of eggplant. J Food Agric Environ 2:218–219Piergiovanni AR, Laghetti G (1999) The common bean landraces from Basilicata (Southern Italy): an example of integrated approach applied to genetic resources management. Genet Resour Crop Evol 46:47–52Plazas M, Andújar I, Vilanova S, Hurtado M, Gramazio P, Herraiz FJ, Prohens J (2013) Breeding for chlorogenic acid content in eggplant: interest and prospects. Not Bot Horti Agrobot Cluj Napoca 41(1):26–35Polegri L, Negri V (2010) Molecular markers for promoting agro-biodiversity conservation: a case study from Italy. How cowpea landraces were saved from extiction. Genet Resour Crop Evol 57:867–880Prohens J, Muñoz JE, Vilanova S, Castro A, Ribas F, Nuez F (2007a) Participatory breeding in eggplant: selection and improvement for quality and yield in a local landrace. In: Niemirowicz-Szczytt K (ed) Progress in research on capsicum & eggplant. Warsaw University of Life Sciences, Warsaw, pp 221–230Prohens J, Rodríguez-Burruezo A, Raigón MD, Nuez F (2007b) Total phenolics concentration and browning susceptibility in a collection of different varietal types and hybrids of eggplant: implications for breeding for higher nutritional quality and reduced browning. J Am Soc Hortic Sci 132:638–646Prohens J, Muñoz-Falcón JE, Rodríguez-Burruezo A, Ribas F, Castro A, Nuez F (2009) ‘H15’, an Almagro-type pickling eggplant with high yield and reduced prickliness. HortScience 44:2017–2019Prohens J, Whitaker BD, Plazas M, Vilanova S, Hurtado M, Blasco M, Gramazio P, Stommel JR (2013) Genetic diversity in morphological characters and phenolic acids content resulting from an interspecific cross between eggplant, Solanum melongena, and its wild ancestor (S. incanum). Ann Appl Biol 162:242–257Rodríguez-Burruezo A, Prohens J, Nuez F (2008) Performance of hybrids between local varieties of eggplant (Solanum melongena) and its relation to the mean of parents and to morphological and genetic distances among parents. Eur J Hortic Sci 73:76–83Salas P, Rivas-Sendra A, Prohens J, Seguí-Simarro JM (2012) Influence of the stage for anther excision and heterostyly in embryogenesis induction from eggplant anther cultures. Euphytica 184:235–250San José R, Sánchez MC, Cámara M, Prohens J (2013) Composition of eggplant cultivars of the occidental type and implications for the improvement of nutritional and functional quality. Int J Food Sci Technol 48:2490–2499Seseña S, Palop L (2007) An ecological study of lactic bacteria from Almagro eggplant fermentation brines. J Appl Microbiol 103:1553–1561Spataro G, Negri V (2013) The European seed legislation on conservation varieties: focus, implementation, present and future impact on landrace on farm conservation. Genet Resour Crop Evol 60:2421–2430Torricelli R, Tiranti B, Spataro G, Castellini G, Albertini E, Falcinelli M, Negri V (2013) Differentiation and structure of an Italian landrace of celery (Apium graveolens L.): inferences for on farm conservation. Genet Resour Crop Evol 60:995–1006Trichopolou A, Soukara S, Vasilopoulou E (2007) Traditional foods: a science and society perspective. Trends Food Sci Technol 18:420–427Vilanova S, Manzur JP, Prohens J (2012) Development and characterization of genomic simple sequence repeat markers in eggplant and their application to the study of diversity and relationships in a collection of different cultivar types and origins. Mol Breed 30:647–66
Liftings for noncomplete probability spaces
No full textThe current state of knowledge concerning liftings for noncomplete probability spaces is discussed. This is a somewhat expanded version of the author's talk given at the 1991 Summer Conference on General Topology and Applications in Honor of Mary Ellen Rudin and Her Work.PT: S; CR: BURKE MR, IN PRESS P AM MATH S BURKE MR, 1991, ISRAEL J MATH, V73, P33 BURKE MR, 1992, ISRAEL J MATH, V79, P289 CARLSON T, THEOREM LIFTING CHRISTENSEN JPR, 1974, TOPOLOGY BOREL STRUC FREMLIN DH, 1989, HDB BOOLEAN ALGEBRAS, P877 INOESCUTULCEA A, 1966, 5TH P BERK S MATH ST, V2 IONESCUTULCEA A, 1967, CONTRIBUTIONS PROB 1, P63 IONESCUTULCEA A, 1969, TOPICS THEORY LIFTIN JECH TJ, 1978, SET THEORY JOHNSON RA, 1980, P AM MATH SOC, V80, P234 JUST W, IN PRESS T AM MATH S KUPKA J, 1983, INDIANA U MATH J, V32, P717 LOSERT V, 1983, LNM, V1080, P95 MAHARAM D, 1958, P AM MATH SOC, V9, P987 SHELAH S, 1983, ISRAEL J MATH, V45, P90 TALAGRAND M, 1982, P AM MATH SOC, V84, P379 VONNEUMANN J, 1931, CRELLES J MATH, V165, P109; NR: 18; TC: 0; J9: ANN N Y ACAD SCI; PG: 4; GA: BZ86BSource type: Electronic(1
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