1,720,955 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Well Construction Hydraulics In Challenging Environments [hidráulica De Construção De Poços Em Cenários Críticos]
No full textThis article reports the main R&D efforts on wellbore construction hydraulics which facilitated the technological development of major Brazilian offshore fields in challenging scenarios. These include: deep and ultra deepwater exploratory campaigns, inclined, horizontal and complex trajectory development wells, extended reach wells, long horizontal section wells and drilling through sensitive formations (heavy oil reservoirs, salt zones and fractured carbonates). The relevant scenarios, technical aspects, project development strategies, the history of wellbore hydraulics in the main Petrobras R&D programs, as well as the contribution of Brazilian universities are detailed.42183200Almeida, M., Cisne, L., Calvo, J.C.B., Corá, C.A.G., Drillnig and completions of extend reach high rate deepwater producer well in Campos Basin - Brazil (2002) Annual Deep Offshore Technology International Conference and Exhibition, 14. , New Orleans, L.A. Proceedings. Richardson: Offshore Technology Conference, 2002Alves, I., Aragão, A., Bastos, B., Falcão, J., Fartes, E., Pre-Salt Santos Basin -well construction learning curve acceleration (2009) Offshore Technology Conference, 9. , Houston, Texas. Proceedings. Richardson: Offshore Technology Conference, 2009. OTC 20177-MSAmbros, A.C.D., Vitorassi, P.H., Franco, A.T., Morales, R.E.M., Martins, A.L., Numerical simulation of a viscoelastic flow through a concentric annular - Influence of the Deborah number (2008) Brazilian Congress of Thermal Engineering and Sciences, 12. , Belo Horizonte, MG. Proceedings. Rio de Janeiro: ABCM, 2008Andrade, A.R., Lomba, R.F.T., Martins, A.L., Michel, R.C., Estudo sobre a invasão de filtrado de fluído de perfuração por embebição durante a perfuração de reservatórios de gás (2007) Congresso Brasileiro De Sistemas Particulados - ENEMP, 33. , Aracaju, Sergipe. Proceedings. Sergipe: Universidade Federal de Sergipe, 2007Aragão, A.F.L., Calderón, A., Lomba, R.F.T., Moreira, J.N.V.C., Sá, A.N., Martins, A.L., Quintero, L., Moura, E., Field implementation of Gravel Packing horizontal wells using a solids-free synthetic fluid with alpha-/beta-wave technology (2009) SPE Drilling & Completion, Richardson, 24 (4), p. 7. , Dec. SPE 110440-PAAranha, P.E., Miranda, C.R., Magalhães, J.V.M., Campos, G., Martins, A.L., Braghini, A., Naccache, M.F., Dynamic aspects governing cement plug placement in deepwater wells (2011) IADC/SPE Drilling Conference and Exhibition, , Amsterdam, The Netherlands, Proceedings. Richardson: Society of Petroleum Engineers, 2011. SPE/IADC 140144Avelar, C.S., Ribeiro, P.R., Sepehrnoori, K., Deepwater gas kick simulation (2009) Journal of Petroleum Science and Engineering, Amsterdam, 67 (1-2), pp. 13-22. , JulyBeltrão, R.L.C., Sombra, C.L., Lage, A.C.V.M., Netto, J.R.F., Henriques, C.C.D., Challenges and new technologies for the development of the pre-salt cluster, Santos Basin, Brazil (2009) Offshore Technology Conference, , Houston, Texas. Proceedings. Richardson: Offshore Technology Conference, 2009. OTC 19880-MSCarminatti, M., Dias, J.L., Wolff, B., From turbidites to carbonates: Breaking paradigms in deep waters (2009) Offshore Technology Conference, , Houston, Texas. Proceedings. Richardson: Offshore Technology Conference, 2009. OTC 20124-MSCasanova, L.M.A., (2011) Soluções Analíticas e Numéricas Para Escoamento Laminar de Fluidos Viscoplasticos em Tubos Elípticos, , Dissertação (Mestrado) - Universidade Tecnológica Federal do Paraná, Curitiba, 2011Costa, F.G., Ferreira, M.V.D., Campos, E.F., Macedo, F.S., Aragão, A.F.L., Martins, A.L., An Experimental study to define operational parameters governing hole enlargement while drilling offshore heavy-oil reservoirs (2010) IADC/SPE Drillng Conference and Exhibition, , New Orleans, Louisiana. Proceedings. Houston: International Association of Drilling ContractorsRichardson: Society of Petroleum Engineers, 2010. IADC/SPE 128915-MSCosta, S.S., Stuckenbruck, S., Fontoura, S.A.B., Martins, A.L., Simulation of transient cuttings transportation and ECD in wellbore drilling (2008) EUROPEC/EAGE Conference and Exhibition, p. 9. , Rome, Italy. Proceedings. Richardson: Society of Petroleum Engineers, 2008. SPE 113893-MSDe Lai, F.C., Junqueira, S.L.M., Franco, A.T., Lage, J.L., Natural Convection in a heterogeneous porous cavity: Aspect ratio effects (2010) National Congress of Mechanical Engineering, 6. , Campina Grande. Proceedings. Richardson: Society of Petroleum Engineers, 2010Deepwater drilling (2009) Advanced Drilling and Well Technology, pp. 574-582. , AADNOY, B. S.COOPER, I.MISKA, S. Z.MITCHELL, R. F.PAYNE, M. L. (Org.). Richardson: Society of Petroleum Engineers, Cap. 7Dutra, E.S.S., Martins, A.L., Miranda, C.R., Aragão, A.F.L., Campos, G., Mendes, P.R.S., Naccache, M.F., Dynamics of fluid substitution while drilling and completing long horizontal-section wells (2005) Latin American and Caribbean Petroleum Engineering Conference, p. 8. , Rio de Janeiro, Brazil. Proceedings. Richardson: Society of Petroleum Engineers, 2005. SPE 94623-MSFigueiredo, M.S., Almeida, L.C., Costa, F.G., Clarisse, M.D., Lopes, L.M.A., Lucas, E.F., Leal, R., Martins, A.L., Development of a method to evaluate the performance of aqueous polymer solutions as drag reduction agents in bench scale (2006) Macromolecular Symposia, Hoboken, 245-246 (1), pp. 260-265. , Dec. Special Issue: World Polymer Congress - MACRO 2006Folsta, M.G., Martins, A.L., Lomba, R.F.T., Cardoso, W.F., Simão, C.A., Sidi, I.A., Predicting salt leaching during drilling and cementing operations (2011) SPE/IADC Drilling Conference and Exhibition, p. 10. , Amsterdam, Holanda. Proceedings. Richardson: Society of Petroleum Engineers, 2011. SPE 140242-MSFormigli, J.M., Pinto, A.C.C., Almeida, A.S., Santos basin's pre-salt reservoirs development - The way ahead (2009) Offshore Technology Conference, p. 10. , Houston, Texas. Proceedings. Richardson: Offshore Technology Conference, 2009. OTC19953-MSGandelman, R.A., Waldmann, A.T.A., Martins, A.L., Teixeira, G.T., Aragão, A.F.L., Rezende, M., Mari, A., Field implementation of a real time drilling problem diagnostic for deepwater exploratory wells (2010) Offshore Technology Conference, , Houston, Texas. Proceedings. . Richardson: Offshore Technology Conference, 2010. OTC 20652-MSGomes, F.C., Carvalho, M.S., Lubrication model of the flow of several liquids through an annular space with varying eccentricity (2009) International Congress of Mechanical Engineering - COBEM, 20. , Gramado. Proceedings. Rio de Janeiro: ABCM, 2009Grothe, V.P., Ribeiro, P.R., Sousa, J.L.A.O., Fernandes, P.D., The Study of crosslinked fluids leakoff in physical simulations of hydraulic fracturing (2000) RIO Oil & Gas Conference and Exhibition, , Rio de Janeiro. Proceedings. Rio de Janeiro: IBP, 2000. Paper IBP-02900Kimura, H.F., Ramalho, V.A.O., Negrão, C.O.R., Junqueira, S.L.M., Martins, A.L., Transient mathematical model for the axial annular fluid flow caused by drillpipe motion (2008) Brazilian Congress of Thermal Engineering and Sciences, 12. , Belo Horizonte, MG. Proceedings.Rio de Janeiro: ABCM, 2008Lomba, R., Folsta, M., Cardoso, W., Gonçalves, C.J., Martins, A., Aragão, A., Oliveira, M., Drilling fluids design tools to salt sections drilling (2010) RIO Oil & GáS Expo and Conference, 15. , Rio de Janeiro. Proceedings. Rio de janeiro: IBP, 2010Loureiro, B.V., Magalhães, J.V.M., Ferreira, M.V.D., Calderón, A., Martins, A.L., Santos, F.P., A Comparison of design placement methodologies for horizontal open hole gravel pack in multizone completion projects (2009) Latin American and Caribbean Petroleum Engineering Conference, , Cartagena de Indias, Colombia. Proceedings. . Richardson: Society of Petroleum Engineers, 2009. SPE122064-MSLoureiro, B.V., Magalhães, J.V.M., Ferreira, M.V.D., Calderón, A., Martins, A.L., Santos, F.P., Horizontal open hole gravel pack placement requirements in selective completion projects (2010) European Formation Damage Conference, 8. , Scheveningen, Netherlands. Proceedings. Richardson: Society of Petroleum Engineers, 2010. SPE 122054-MSMagalhães, G.R., (2011) Estudo Experimental de Um Escoamento Bifásico Horizontal Considerando Os Efeitos da Solubilidade da Fase Gasosa, , Dissertação (Mestrado) - Universidade Federal do Rio de Janeiro, COPPE, Rio de Janeiro, 2011Martins, A.L., Magalhães, J.V.M., Ferreira, M.V.D., Calderón, A., Sá, A.N., Sand control in long horizontal section wells (2009) Offshore Technology Conference, , Houston, Texas. Proceedings. Richardson: Offshore Technology Conference, 2009. OTC 20113-MSMartins, A.L., Sa, C.H.M., Lourenço, A.M.F., Freire, L.G.M., Campos, W., Experimental determination of interfacial friction factor in horizontal drilling with a bed of cuttings (1996) SPE Latin America/Caribbean Petroleum Engineering Conference, , Port-of-Spain, Trinidad. Proceedings. Richardson: Society of Petroleum Engineers, 1996. SPE 36075-MSMartins, A.L., Santana, C.C., Evaluation of cuttings transport in horizontal and near horizontal wells - A dimensionless approach (1992) SPE Latin America Petroleum Engineering Conference, , Caracas, Venezuela. Proceedings. Richardson: Society of Petroleum Engineers, 1992. SPE 23643-MSMartins, A.L., Santana, M.L., Campos, W., Gaspari, E.F., Evaluating the transport of solids generated by shale instabilities in ERW drilling (1999) SPE Drilling & Completion, Richardson, 14 (4), pp. 254-259. , Dec. SPE 59729-PADe Souza, M.P.R., Naccache, M.F., Varges, P.R., Marchesini, F.H., Flow of viscoplastic liquids through axisymmetric expansions-contractions (2007) Journal of Non-Newtonian Fluid Mechanics, 142 (1-3), pp. 207-217. , DOI 10.1016/j.jnnfm.2006.09.007, PII S0377025706002679, Viscoplastic fluids: From theory to applicationMonteiro, E.N., Ribeiro, P.R., Lomba, R.F.T., Study of the PVT Properties of gas - Synthetic-drilling-fluid mixtures applied to well control (2010) SPE Drilling & Completion, Richardson, 25 (1), pp. 45-52. , MarMoreno, R.B.Z.L., Bonet, E.J., Waldmann, A.T.A., Martins, A.L., Tayloring filtrate rheology for invasion control in heavy and light oil reservoirs (2009) European Formation Damage Conference, 8. , Scheveningen, The Netherlands. Proceedings. Richardson: Society of Petroleum Engineers, 2009. SPE 122076-MSNegrão, C.O.R., Franco, A.T., Oliveira, G.M., Martins, A.L., Gandelman, R.G., Rocha, L.L.V., Pressure transmission in gelled drilling fluids in deepwater environments (2010) IADC/SPE Drilling Conference and Exhibition, , New Orleans, Louisiana. Proceedings. Richardson: International Association of Drilling Contractors, 2010. SPE128859-MSNelson, R., (2001) Geologic Analysis of Naturally Fractured Reservoirs, p. 352. , 2. ed. Houston: Gulf Professional PublishingNogueira, E.F., Vanni, G.S., Aragão, A.F.L., Fates, E.T.M., MPD Operations in Petrobras - Past, present and future (2011) IADC/SPE Managed Pressure Drilling & Underbalanced Operations Conference & Exhibition, , Denver, Colorado. Proceedings. Richardson: International Association of Drilling Contractors, 2011Paula Jr., R.R., Ribeiro, P.R., Santos, O.L.A., HPHT Drillings new frontiers for well safety (2009) SPE/IADC Drilling Conference and Exhibition, , Amsterdã, Holanda. Proceedings. Richardson: Society of Petroleum Engineers, 2009. SPE 119909-MSPedroso, C., Sanches, E., Oliveira, N., Fernandes, L., Mickelburgh, I.J., Coelho, G.S., New solutions to extend the application window of horizontal openhole Gravel Packing (2005) SPE Annual Technical Conference and Exhibition, , Dallas, Texas. Proceedings. Richardson: Society of Petroleum Engineers, 2005. SPE 96257-MS(2009) Relatório Anual de Sustentabilidade 2009, p. 159. , PETROBRAS. Rio de Janeiro: Petrobras, ComunicaçãoPinto, A.C.C., Branco, C.C.M., Matos, J.S., Vieira, P.M., Guedes, S.S., Pedroso, C., Coelho, A.C.D., Ceciliano, M.M., Offshore heavy oil in Campos Basin: The Petrobras experience (2003) Offshore Technology Conference, , Houston, Texas. Proceedings. Richardson: Offshore Technology Conference, 2003. SPE 15283-MSRibeiro, P.R., Pessôa-Filho, P.A., Lomba, R.F.T., Bonet, E.J., Measurement and modeling of methane dissolution in synthetic liquids applied to drilling fluid formulation for deep and ultradeep water wells (2006) Journal of Petroleum Science and Engineering, Amsterdam, 51 (1-2), pp. 37-44. , AprRossi, L.F.S., Baptista, J.M.M., Morales, R.E.M., Thermodynamic analysis of the formation of hydrates in drilling operations (2006) Brazilian Congress of Thermal Sciences and Engineering - ENCIT, 11. , Curitiba. Proceedings. Rio de Janeiro: ABCM, 2006Sayd, A.D., Moço, A.L.B., Branco, C.C.M., Kato, E.T., Carvalho Jr., I.P., Rosseto, J.A., Silva Neto, J.A., Brasil, T.E., Siri pilot project - First offshore extra heavy and viscous oil (2009) Offshore Technology Conference, , Houston,Texas. Proceedings. Richardson:Offshore Technology Conference, 2009. OTC 20134-MSScheid, C.M.L., Calçada, L.A., Araújo, C.A.O., Waldmann, A.T.A., Martins, A.L.A., Theoretical and experimental analysis of dynamic filtration in drilling operations (2010) SPE International Symposium and Exhibition on Formation Damage Control, , Lafayette, Louisiana. Proceedings. Richardson: Society of Petroleum Engineers, 2009. SPE 128035-MSScheid, C.M., Calçada, L.A., Rocha, D.C., Aranha, P.E., Aragão, A.F.L., Martins, A.L., Prediction of pressure losses in drilling fluid flows in circular and annular pipes and accessories (2009) SPE Latin American and Caribbean Petroleum Engineering Conference, , Cartagena, Colombia. Proceedings. Richardson: Society of Petroleum Engineers, 2009. SPE 122072-MSSilva, M.G.P., Martins, A.L., Evaluation of the Rheological Behavior, Equivalent Diameter and Friction Loss Equations of Fluids in air condition (1988) World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics, 1. , Dubrovnik, Croatia. Proceedings. New York: Elsevier, 1988Silva, M.G.P., Martins, A.L., Barbosa, B.C., Garcia Jr., H., Designing fluid velocity profiles for optimal primary cementing (1996) SPE Latin America/Caribbean Petroleum Engineering Conference, , Port-of-Spain, Trinidad. Proceedings. Richardson: Society of Petroleum Engineers, 1996. SPE 36136-MSSilveira Neto, A., Padilla, E.L.M., Martins, A.L., Annular flows with variable eccentricity: Preliminary results (2007) Encontro Nacional de HidráUlica de PerfuraçÃo e CompletaçÃo de Poços - ENAHPE, 2. , Teresópolis, Rio de Janeiro. Proceedings. Rio de Janeiro: PUC-Rio, 2007. p. 1-13Souza, J.Z., Ribeiro, D.C., Fontes, C.E., Martins, A.L., Waldmann, A.T.A., Lomba, R.F.T., Análise do escoamento de fluidos particulados durante a perfuração de reservatórios fraturados (2009) Encontro Nacional de Hidráulica De Poços de Petróleo e Gás - ENAHPE, 3. , Campos de Jordão, São Paulo. Proceedings. São Paulo: Universidade Estadual de Campinas, 2009Stuckenbruck, S., Fontoura, S.A.B., Martins, D.Q., Costa, S.S., Martins, A.L., Uma Nova abordagem para a modelagem de suspensão de cascalho no transporte em dutos (2009) Encontro Nacional de Hidráulica de Poços de Petróleo e Gás - ENAHPE, 3. , Campos de Jordão, São Paulo. Proceedings. São Paulo: Universidade Estadual de Campinas, 2009Thonhauser, G., Millheim, K., Martins, A.L., Cuttings flux measurement and analysis for extended-reach wells (1999) SPE/IADC Drilling Conference, , Amsterdã, Holanda. Proceedings. Richardson: Society of Petroleum Engineers, 1999. SPE 52793-MSVarges, P.R., Mendes, P.R.S., Emídio, P., Waldmann, A., Martins, A., Liquid-liquid displacement flows in a hele-shaw cell including non-newtonian effects (2010) Brazilian Conference on Rheology, 5. , Rio de Janeiro. Proceedings. Rio de Janeiro: ABCM, 2010Vega, M., Martins, A., Fred Folsta, M., Experimental and theoretical study of control strategies for constant bottomhole pressure while drilling oil wells (2011) IADC/SPE Managed Pressure Drilling and Underbalanced Operations Conference & Exhibition, , Denver, Colorado. Proceedings. Richardson: Society of Petroleum Engineers, 2011. SPE 143098-MSWaldmann, A.T.A., Martins, A.L., Aragão, A.F.L., Lomba, R.F.T., Predicting and monitoring fluid invasion in exploratory drilling (2005) SPE Drilling & Completion, Richardson, 20 (4), pp. 268-275. , Dec. SPE 86497-P
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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